Create a simple application (not for use purpose) - system airline management where I will be able to add a pilot, add a flight, add a passenger, add an airplane, book a flight. There will be several jsp files. There are a lot of similar applications on internet. If you want you can use them. Tools: JPA (connection to db using JPA), Stateless Beans, JMS, Servlet, RestWebServices.
You can use Wildfly, MySQL and Eclipse as environments.